Chemical and structural changes of hydroxyapatite films by using a sol–gel method
Chemical and structural changes of hydroxyapatite films by using a sol–gel method
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溶胶-凝胶法羟基磷灰石薄膜的化学和结构变化
DOI：
10.1016/s0257-8972(99)00174-7
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
Y. Lim
中科院分区：
文献类型：
--
作者：
K. Hwang;Y. Lim
以硝酸钙和磷酸为原料，采用溶胶-凝胶法在Si（100）衬底上制备了羟基磷灰石涂层。将前体溶胶旋涂到基底上并在空气中在300°C下预烧60秒。通过X射线衍射在500°C观察到羟基磷灰石结构的形成，并且在700°C形成β-磷酸三钙相。根据傅里叶变换红外光谱的结果，讨论了碳酸化羟基磷灰石分解生成β-磷酸三钙的过程。
Hydroxyapatite coatings were prepared onto Si(100) substrates by using a sol–gel method with calcium nitrate and phosphoric acid as starting materials. Precursor sols were spin-coated onto the substrates and prefired at 300°C for 60s in air. Formation of the hydroxyapatite structure was observed at 500°C by X-ray diffraction and a β-tricalcium phosphate phase was formed at 700°C. According to the results of Fourier transform infrared spectroscopy, the formation of a β-tricalcium phosphate is discussed on the basis of the decomposition of carbonated hydroxyapatite.